Steam fitting or joint for journals of rotary steam-cylinders or other revolving bodies.



No. 879,845. PATENTED FEB. 25,1908;

, A. ALDRICH. STEAM FITTING QR JOINT FOR' JOURNALS 0P ROTARY STEAMCYLINDERS OR OTHER REVOLVING BODIES.

APPLICATION FILED SEPT. 3, 1907.

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No. 879,845. PATBNTED FEB. 25, 1908.

A. ALDRICH. STEAM FITTING 0 JOINT FOR JOURNALS OF ROTARY STEAM CYLINDERSOR OTHER REVOLVING BODIES;

APPLICATION FILED SEPT. 3, 1907.

2 BERNIE-SHEET 2-v 5151 hath cum;

TH! nomns Parties co., WASHINGTON. n. c

UNITED STATES PATENT orrron ALONZO ALDRICH, OF BELOIT, WISCONSIN.

STEAM FITTING OR JOINT FOR JOURNALS OF ROTARY STEAM-CYLINDERS OR OTHERREVOLVING BODIES.

Specification of. Letters Patent.

Patented Feb. 25, 1908- Application filed September 3. 1907: Serial No.391.006.

To all whom it may concern:

Be it known that I, ALoNZo ALDRICH, a citizen of the United States,residing at Beloit, county of Rock, State of Wisconsin, have made acertain new and useful Invention in Steam Fittings or Joints forJournals of Rotary Steam-Cylinders or other Revolving Bodies, of whichthe following is a specification.

This invention relates to steam fittings or joints for journals forrotary steam cylinders, or other bodies.

The object of the invention is to provide a steam fitting or joint forjournals for rotary steam cylinders or other bodies, such as areemployed for making paper pulp and other purposes, which is simple inconstruction and efficient in operation.

A further object is to provide means in a fitting or joint of thecharacter referred to to compensate for expansion or contraction of thesteam supply pipes, or for settling of the supply mains, withoutimpairing the efficiency of the joint.

Other objects of the invention will appear more fully hereinafter. x

The invention consists substantially in the construction, combination,location and arrangement of parts, all as will be more fully hereinafterset forth, as shown in the accompanying drawings and finally pointed outin the appended claims.

Referring to the accompanying drawings and to the various views andreference signs appearing thereon: Figure 1 is a view in top p an of afitting or joint for journals embodying the principle of my invention,parts being broken out and in section, to show the steam joint of therotary cylinder. Fig. 2 is an end elevation of the construction shown inFig. 1. Fig. 3 is a broken detail view in section of the rotary cylindersteam joint.

The same part is designated by the same reference sign wherever itoccurs throughout the several views.

In certain classes of machines used in the manufacture of paper, and forother pur poses, a rotary cylinder or other vessel is employed to whichsteam is supplied and from which the condensation is drawn or siphoned.In such machines it is usual to supply the steam and withdraw the waterof condensation through the hollow journal of the cylinder, and hencethe necessity for providing a steam tight joint between the stationaryfitting through which the steam is supplied and the condensation iswithdrawn, and the rotating cylinder or vessel, so as to permit therotations of the cylinder or vessel without loss or escape of the steam.In the use of such machines it is usual to supply the steam from, and todeliver the withdrawn water of condensation into mains which aresupported upon the floor of the building or suspended from the ceilingor beneath the floor, the supply and siphon pipes being arranged to forma connection between such mains and the journal of the rotary cylinder.It frequently happens that the mains or their supports settle or sag. Italso frequently happens that the steam'and siphon pipes expand andcontract lengthwise. In such cases, where a rigid connection is madebe-' tween the mains and the journal of the rotary cylinder, the steamjoint is impaired and the steam escapes therethrough. This isparticularly true where any considerable degree of steam pressure ismaintained in the cylinder.

It is among the special purposes of my present invention to providemeans such that expansion or contraction of the steam supply or exhaustpipes, or settling of the mains will not affect the efliciency of thesteam joint.

In carrying out my invention I propose to employ a fitting and connectthe same by means of a steam tight joint to the end of the revolvingcylinder or to the journal or j ournal extension thereof, and I connectthe steam and exhaust pipes to such fitting in laterally offset relationwith respect to the axis of said steam tight joint, whereby, in case ofexpansion or contraction of said pipes, or in case of settling of themains to which said pipes are connected, said fitting can move axiallywith respect to the bearing seat thereof against the cylinder journal orextension, and Without impairing the steam tight joint between theseparts.

Referring to the drawings, reference sign A, designates the hollowjournal of the rotating cylinder, or an extension thereof, said journalbeing formed with or connected to the cylinder by means of the head B,or otherwise, in the usual or any ordinary manner. At its outer end, thejournal A is shaped to form a bearing seat as at C, to receive acooperating seat D, formed on a fitting E. In the particular form shown,

' but to which my invention is not to be limited or restricted, thebearing seats C, and D, are ground to form a steam tight joint betweenthe journal or its extension, and the fitting, and to this end one ofthese seats is concaved and the other correspondingly convexed as shown.By this construction, a steam tight joint between these parts ismaintained while permitting the rotary movements of the cylinder, and atthe same time rotary displacement of the seat D of the fitting, in axialrelation with respect to the cylinder journal and the joint, is alsopermitted without in any manner impairing the efficiency of the joint asa steam'tight joint. Under ordinary conditions the fitting E, isstationary with reference to the rotating. cylinder, but is permitted. amovement such as will cause the bearing seat D to have a slight axialmovement relative to the seat C, without impairing the efficiency of thejoint as a steam tight joint.

Any suitable or convenient means may be employed for maintaining thebearing relation of the seats C and D, and to maintain the joint steamtight, while permitting the former to revolve and the latter to have aslight axial movement. In the particular form shown, to which myinvention, however, is not to be limited or restricted, a collar F isloosely mounted on the journal or extension A, and carries screw boltsG, which extend through ears I-I, formed on the fitting E. The nuts J,on the ends of the bolts G, serve to draw the parts together to form thesteam tight joint. It is obvious that the fitting and the journal endmay be held together in many other different ways and my invention doesnot concern itself with this particular feature. Where a collar andbolts and nuts are employed, and, if desired, a washer K, or rubberorother resilient material may be interposed between the nuts'J and theears H, or, if desired, coil springs L, may be so interposed. Suchresilient washers or springs merely serving to permit the slight axialmovement of the fitting above referred to without impairing theefliciency of the steam tight joint.

The fitting E, is provided with an offset or lateral extension, that is,said fitting is off set laterally with respect to the bearing seat D.Said fitting and its lateral extension is provided with a passage M, oflarge area, and also a passage N, of small area. The passage M, deliversthrough an opening 0, formed through the bearing seat D, and into thehollow ournal A, and thence into the cylinder. Through this passage thesteam is supplied to the cylinder. A pipe P, communicates at one endwith the passage N, and extends longitudinally through the relation ofthis exhaust pipe with reference to the cylinder.

At the outer or free end of the fitting E, or

the laterally off-set portion thereof, and at the outer ends of thepassages M, and N, therethrough, I form oppositely presented bearingseats R, S, withwhich respectively cooperate similar seats T, W, at theends of the steam supply and exhaust pipes A, B, thereby forming steamtight joints at these points. The construction of these joints may besimilar to that of the joint between the cylinder journal or extensionA, and the fitting E, above described, and are what is known as balljoints. The pipes A, B, extend ordinarily in vertical relation to theoffset portion or lateral extension of the fitting. E, as most clearlyshown in Fig; 2 and connect the passages M, and N, with the supply andexhaust mains. The joints between these pipes A, and B, and the fittingE, may be maintained efficiently steam tight while permitting slightrelative rotation of the seats R, T, and S, W, in any suitable orconvenient manner. I have shown a simple arrangement wherein rods Cthrough ears D, formed respectively on the couplings E, and nuts F,serve to draw said couplings towards each other. If desired, springs orother resilient means, Gr, may be inter osed between the nuts and theears, as clear y shown thereby providing a desirable resiliency whichpermits the relative rotative movement of the parts of these jointswithout impairing the efiiciency of the steam tight joints.

From-the foregoingdescription it will be seen that I provide anexceedingly simple and efficient construction of journal bearing forrotating steam cylinders wherein any expansion or contraction of thesteam su ply or exhaust pipes, or any settling or disp acement of themains is accommodated'without impairing the efficiency of the steamtight joints of the parts of such bearing. It will.

also be seen that when such expansion, contraction, settling ordisplacement occurs the fitting E, moves or swings slightly about theaxial line of the journal bearing without disturbing the relation of theball joints by which said fitting is respectively connected to thejournal extension of the cylinder and to the supply and exhaust pipes.

Many variations and changes in the details of construction andarrangement might readily occur to persons skilled in the art and stillfall within the spirit and scope of my.

are passed invention. I do not desire, therefore, to be limited orrestricted to the exact details shown and described. But

Having now set forth the object and nature of my invention and aconstruction embodying the princi les thereof, What I claim as new andusefu and of my own invention and desire to secure by Letters Patentis 1. In a steam fitting or joint for journals for revolving steamcylinders, the combination of a hollow journal a fitting, a pipeconnected to the fitting, and steam joints between said fitting andjournal and pipe respectively, and means for permitting relative rotarymovements of said fitting and journal and pipes.

2. In a device of the class described, a hollow journal, a fitting, saidjournal and fitting having cooperating bearing seats to form a steamtight joint therebetween, and a steam pipe having relatively rotativesteam tight connection to said fitting in laterally off-set relationwith respect to said steam joint.

3. In a device of the class described, a hollow ournal, a fitting, saidjournal and fitting having cooperating relatively rotative bearing seatsto form asteam tight joint therebetween means for maintaining said seatsin bearing relation with respect to each other, said fitting having alaterally off-set portion, and a steam supply pipe having relativelyrotative connection to said ofi-set portion.

4. In a device of the class described, a hollow journal having a seat inits end, a fitting, having a passage therethrough and having bearingseats at the respective ends of said passage, the bearing seats in saidfitting lying in substantially the same plane, a steam supply pipehaving relatively rotative connection with one of said fitting bearingseats, the other of said fitting bearing seats cooperating with the seatin the end of the journal.

5. The combination with a hollow revolving journal, and a steam supplypipe, of a laterally off-set fitting and relatively rotative steam jointconnections between the ends of said fitting and said journal and piperespectively.

6. The combination with a hollow revolving journal a steam supply and anexhaust pipe, of a fitting having passages extending in laterallyoff-set relation with respect to the axis of said journal, andrelatively rotative steam tight joints between said fitting and journaland pipes respectively.

7. The combination with a hollow revolving journal of a fitting, meansfor maintaining relatively rotative steam tight connections between saidjournal and fitting, said fitting having a portion off-set laterallyfrom the axis of said journal, a steam pipe connected to the oil-setportion of said fitting and means for maintaining relatively rotativesteam tight connections between said pipe and fitting.

8. The combination with a hollow journal, of a fitting having a passagetherethrough,

an exhaust pipe communicating with said passage and extending throughsaid journal, said fitting having an extension laterally offset from theaxis of said journal, a pipe having relatively rotative steam jointconnection to said laterally ofi-set extension, and relatively rotativesteam joint connections between said fitting and journal.

9. The combination with a hollow journal of a fitting having a steamjoint connection permitting relative rotary movements of said parts,said fitting having an extension ofi-set aterally from the axis of saidjournal, passages formed through said fitting and com municating at oneend through said journal, oppositely presented bearing seats at theouter ends of the passages in said fitting, pipes having relativelyrotative connections cooperating with said bearing seats and means formaintaining said connections steam tight.

10. The combination with a hollow journal, of a fitting having anextension off-set laterally from the axis of said bearing, pipesconnected to the oil-set portion of said fitting, and steam tight balljoints between said fitting and journal and pipes.

In testimony whereof I have hereunto set my hand in the presence of thesubscribing witnesses, on this 19th day of July A. D.,

ALONZO ALDRICH. Witnesses:

R. K. RooKwELL, GUY R. HOLLISTER.

